Universal joint.



A.s.sANF0Rb.

UNIVERSAL 10m.

APPLICATION FILED JAN. 20, l9l3.

1,167,599. Patented Jan. 11, 1915.

UNITED srarns PATENT OFFICE.

ANDREW J. SANFORD, 0F NEWARK, OHIO, ASSIGNOR-{XO A. H. HEISEY & 00., OF

NEWARK, OHIO;

UNIVERSAL JOINT.

Specification of Letters Yatent. Patented Jan. 11, 1916.

Application filed January 20, 1913. Seri:=.1 No. 743,098.

To all tr/zoin it may concern:

a citizen of the United States, and resident of Newaikfin the county. of Lickingand State of Ohio. have invented a new and useful Improvement in Universal Joints; and I do hereby declare the following to be a full, clear, and exact description thereof. My invention relates to an improved universal joint construction, and is particularly co fiel' ed Wi h a joint of this character in which provision is made for varying the friction between the members of the joint whereby the parts connected bv thejoint may be moved to and held in different relative positions bv said trirtion'action.

A. further object to provide means for locking the adjusting means in any given position of adjustment.

A further object is to provide a simple, economical and compact construction and one having: a pleasingly ornamental appearance.

l'l'ith these objects in view. the invention consists in a construction and arrangement of parts, a preferred embodiment of which illustrated in the-accompanving drawing, in which Figure 1 is a view in elevation of the joint construction with a variation in the relative position of the parts indicated in dotted outline. Fig. 2 is a longitmlinal sectional view of the parts illustrated in Fig. 1.

In the cmlmdiment of the invention herein selected for illustration. 1 indicates the ball member of the ioint, 2 the Socket memher. The ball member is pret'crablv formed integral with the interiorlv threaded socket piece 3 and the socket member with an inte riorlv threaded socket piece t. These parts mav be formed in any desired and practical manner. The jcint socket member 2 is in the form of a short sleeve. the end of which after the ball member has been inserted therein is spun over as at 5 to maintain the connection of the parts. lVithin the socket member 2 is mounted a short helical spring 6 having one helix 7 thereof of a diameter substantially equal to the interior diameter f of the socket member Q and having another Be it known that I, Azvnnnw J. SANFORD,

helix 8 of considerabl less diameter and adapted to bear against the ball memberi-L' interposed between the spring and the bot-l tom of the socket member 2 is an adjusting plate 9 which may be adjusted by means of a 1! screw 10 passing through the bottom of the socket member 2. The socket pieces 3 and 4 are adapted to receive the threaded standard 11 and 12 of the parts to be connected by the joint, as for example, a display shelfor bracket and its pedestal. It is, of course, immaterial to which of the parts the respective members of f the joint are connected, but as here shown, I may assume that the standard 12 is a pedestal standard, which may be a solid shaft as of glass, or other suitable material, or may be a hollow shaft as in the case of the standard 11 The adjusting screw'lO is of course, to be manipulated before thesocket piece l .is attached to its standard, although it is within the scope of the invention that access may be had to the screw through an opening in the side of the socket piece 4, if desired. In either event, the screw after being turned to the desired position of adjustment mav be locked in that position, as for example bvscrewing home the socket piece. 4: on its standard 12 until the end of the standard bears againstthe screw, thus holding the same against-accidental loosening, or the tension of the spring may be made stroneer so that the socket may be moved vand still afi'ord friction enough to prevent accidental movement thereof, thus holding the same againstaccident-al loosening. 'llhile I have herein described a particular embodiment of my invention. itv is-to be understood that the same may be a te ed in details and arrangement of parts within the scope of the appended claim. Whatl claim iS: I A universal joint construction comprising i a, standard, an adjustable arm mounted thereon, and a universal-joint for said arm, said joint comprising a socket member screwed to the standard, a ball member j screwed to said arm, a spring interposed'between the baseof smdsdcketniember qnd In testlmony whereof, I the-Saul Axmmw sald ball member, and" a' tensionfldjustmg J. SANFORD have hereunto set my hand.

" Screw m the base of sa-id soket 1 n1 enibe1x I I N 1 SANFORD adapted to regulate the tension- 0f .said

' spring and adapted t be eng'agedby the Witnesses:

standard to hold the screw'in adjusted-posiv MAUDE 'Brz 'rrs, 'tion. -JO HN MARTIN. 

